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The symbol for argon.


1. accounts receivable
2. Arkansas
3. army regulation

ar 1

Variant of are2.

ar 2

The letter r.

[Middle English arre, from Late Latin er.]


the internet domain name for
(Computer Science) Argentina


the chemical symbol for
(Elements & Compounds) argon


abbreviation for
1. (Placename) Arkansas
2. (Government, Politics & Diplomacy) Autonomous Region
3. (Accounting & Book-keeping) Also: A/R (in the US and Canada) accounts receivable


var. of ad- before r: arrear.


var. of -al1, joined to words in which an l precedes the suffix: circular; lunar; singular.
[< Latin -āris; replacing Middle English -er < Anglo-French, Old French < Latin -āris]


var. of -er2, often under the influence of a spelling with -ar- in a cognate Latin noun: cellar; collar; poplar; scholar; vicar.


var. of -er1 on the model of -ar2, used in the formation of nouns of agency: beggar; liar.


1. Arkansas.
2. army regulation.




Chem. Symbol.


1. arrival.
2. arrive; arrives.


accounts receivable.


The symbol for argon.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.AR - a colorless and odorless inert gasAr - a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
argonon, inert gas, noble gas - any of the chemically inert gaseous elements of the helium group in the periodic table
air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air" - a unit of surface area equal to 100 square meters
area unit, square measure - a system of units used to measure areas
hectare - (abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters)
3.AR - a state in south central United StatesAR - a state in south central United States; one of the Confederate states during the American Civil War
Hot Springs National Park - a national park in Arkansas featuring ancient hot springs; bathing is said to have therapeutic effects
U.S.A., United States, United States of America, US, USA, America, the States, U.S. - North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
Confederacy, Confederate States, Confederate States of America, Dixie, Dixieland, South - the southern states that seceded from the United States in 1861
Fayetteville - a university town in northwestern Arkansas in the Ozarks
Fort Smith - a town in western Arkansas on the Arkansas River at the Oklahoma border
Hot Springs - a town in west central Arkansas; a health resort noted for thermal springs
Jonesboro - a town in northeast Arkansas
capital of Arkansas, Little Rock - the state capital and largest city of Arkansas in the central part of Arkansas on the Arkansas River
Pine Bluff - a town in southeast central Arkansas on the Arkansas River
Texarkana - a town in southwest Arkansas on the Texas border adjacent to Texarkana, Texas
Arkansas River, Arkansas - a river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River
Ouachita, Ouachita River - a river that rises in western Arkansas and flows southeast into eastern Louisiana to become a tributary of the Red River
Ozark Mountains, Ozark Plateau, Ozarks - an area of low mountains in northwestern Arkansas and southeastern Missouri and northeastern Oklahoma
Saint Francis River, St. Francis River, Saint Francis, St. Francis - a tributary of the Mississippi River that rises in Missouri and flows southeastward through Arkansas
White River, White - a tributary of the Mississippi River that flows southeastward through northern Arkansas and southern Missouri
References in periodicals archive ?
The ARS Water Database is also particularly well-suited to distribution by CD-ROM.
Within a year, they plan to add information on how to use biocontrols, report Flinn and ARS colleague David W.
FINRA found that beginning in late summer 2007, SunTrust RH became aware of stresses in the ARS market that raised the risk that auctions might fail.
In November 2008 Lakes entered into an ARS rights agreement with UBS which granted Lakes the right to sell its ARS at par value to UBS at any time between 30 June 2010 and 2 July 2012.
But ARS has been conducting bioenergy research for more than 50 years, with such successes as helping perfect the cold tolerance of biodiesel, finding that brief exposure to anhydrous ammonia can reduce costs of fuel ethanol production from corn, and developing a whole host of bioproducts from agricultural crops.
Comparative correlations between anxiety subcomponents of the ARS and the Mental Readiness Form-Likert (MRF-L) with the cognitive and somatic state anxiety subscales of the CSAI-2 have consistently favored the ARS (Cox et al.
ARS 95 is the fifth in a series of major exhibitions that have brought works by major figures in international contemporary art to the Scandinavian art public.
One reason ARS chose to test this particular polymer, Sojka says, is its low toxicity.
Russo, D'Addario and Morrison comprised the firm's Corporate Cash Management (CCM) group that provided investment advice and services, including purchasing and selling ARS, to 40 Jefferies institutional clients.
Don Karnes, chief executive officer of ARS, said,"Our vision for national growth is made possible through the addition of quality service providers such as Aspen Air.
Why involve ARS scientists in an international crisis?
The M5 ARS also has a barrel stop assembly that mounts within the hand guard cap of the M16A4.